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Table 1 Constructs of the Depth framework for classifying intervention agentic demand

From: Development and application of the Demands for Population Health Interventions (Depth) framework for categorising the agentic demands of population health interventions

Construct

Level definition

Exposure

How the recipient group first comes into contact with the intervention component

Active

Recipients must change their existing daily activities or initiate new activities to come into contact with the intervention component

Passive

Recipients do not need to make a change from existing daily activities to come into contact with the intervention component.

Passive exposure typically occurs when interventions aim to alter settings for existing users

Mechanism of actiona

How the intervention component enables the intended behaviour or discourages an alternative behaviour

Mechanisms of action can occur at the individual level or as part of a wider system

Socio-cultural

Intervention components that aim to change a community or society’s attitudes, beliefs, norms and values related to the intended behaviour

Cognitive

Intervention components that aim to change individual knowledge, attitudes, beliefs or skills concerning the intended behaviour

Financial

Intervention components that aim to change the relative monetary cost of intended behaviours. This includes reducing the monetary cost of engaging in the desired behaviour or increasing the monetary cost of alternative behaviours. The provision of free or reduced-price tangible goods is also included here

Physical-environmental

Intervention components that aim to change the availability, accessibility, safety, placement or properties of infrastructure, facilities, objects or stimuli in the wider environment, including the digital environment

Biomedical

Intervention components involving drug or medical techniques that aim to alter the intended behaviour or biological systems

Engagementb

The degree to which recipients are required to be aware of or interact with the intervention component’s mechanism of action in order to benefit as intended

Active

Requires recipients to be aware of the mechanism of action and have purposive interaction with it in order to benefit

Passive

Does not require recipients to be aware of or interact with the mechanism of action in order to benefit. It is possible for recipients to be aware and interact with the mechanism of action, but not a necessity

  1. See Additional File 2 for full Depth framework guidance including an applied example
  2. aMultiple mechanisms of action may be present within a single intervention component, and all should be identified and assessed separately
  3. bEngagement should be classified for each mechanism of action identified